The Round Oak railway accident happened on 23 August 1858 between Brettell Lane and Round Oak railway stations, on the Oxford, Worcester and Wolverhampton Railway. The breakage of a defective coupling caused seventeen coaches and one brake van, containing about 450 passengers, of an excursion train to run backwards down the steep gradient between the stations, colliding with a following second portion of the excursion. 14 passengers were killed and 50 injured in the disaster. In the words of the Board of Trade accident inspector, Captain H. W. Tyler, it was at the time "decidedly the worst railway accident that has ever occurred in this country".